- Premera Blue Cross
- Molina Healthcare
- Kaiser Permanente
- Coordinated Care Corporation (CCC)
- UnitedHealthcare
- Regence BlueShield
- Ομαδικός Συνεταιρισμός Υγείας (GHC)
- Cambia Health Solutions
- Lifewise Health Plan of Washington
- Puget Sound Health Alliance (PSHA)